Open AccessДинамика магнитного момента анизотропной наночастицы и плоской решетки в переменном поле
Author(s) -
А.М. Шутый,
Д.И. Семенцов
Publication year - 2018
Publication title -
fizika tverdogo tela
Language(s) - English
Resource type - Journals
eISSN - 1726-7498
pISSN - 0367-3294
DOI - 10.21883/ftt.2018.12.46726.117
Subject(s) - bistability , condensed matter physics , oscillation (cell signaling) , dipole , physics , amplitude , nanoparticle , attractor , magnetic field , anisotropy , chemistry , quantum mechanics , mathematics , mathematical analysis , biochemistry
Dynamic regimes of the magnetic moment of a nanoparticle with an uniaxial or cubic anisotropy are studied. Regular oscillations with different attractor shapes and periods and regimes of chaotic and quasi-periodical dynamics are revealed. The dynamic bistability states are discovered; the transitions between the oscillation regimes belonging to bistability are obtained by means of the pulsed change in the alternating field amplitude. It has been shown that the 90°-remagnatization of the nanoparticle is caused by the alternating field action. The nanoparticle lattice parameters at which the dipole interaction effect on the oscillation regimes of magnetic momenta can be neglected are revealed.